Cast & creator
Kim You-jung
Best known for Running Man, Men on a Mission, 2 Days and 1 Night
Kim You-jung (김유정) is a South Korean actress, born in Seoul, who studied at Goyang High School of Arts. She started out as a model for a confectionery brand at the age of 4 and made her acting debut in 2003, quickly becoming one of the most famous and in-demand child actresses in Korea. She was discovered at 5 years old in a contest that her older sister joined and won the Most Popular Award even though she was not one of the official contestants. She is the youngest of three siblings; her older sister, Kim Yeon-jung, is also an actress. Known as "Nation's Little Sister" during her child acting years, she earned the moniker "Sageuk Fairy" after starring in acclaimed historical period dramas such as Dong Yi (2010), Moon Embracing the Sun (2012), and May Queen (2012). In 2016, she successfully transitioned to adult leading roles in the hit period romance Love in the Moonlight. In 2017, she ranked 8th on the Forbes Korea Power Celebrity list, becoming the youngest person ever to enter the Top 10 at 17 years old. In February 2018, she temporarily paused her career after being diagnosed with thyroid dysfunction. She solidified her status as an international star with leading roles in the romantic comedies Backstreet Rookie (2020), Lovers of the Red Sky (2021), and My Demon (2023–2024). Her performance in the popular Netflix retro drama 20th Century Girl (2022) earned her the title "Nation's First Love". Her projects include the Netflix comedy Chicken Nugget (2024), the psychological thriller series Dear X (2025), and the 1930s historical spy romance 100 Days of Lies (2026).
Also known as: Kim Yoo Jung, Kim Yu-jeong, Kim Yoo-jeong, Kim Yoo-jung, Kim You Jung
27
film credits
38
television credits
65
1992–2026 · acting roles
6.8
average across scored titles
Signature credits
Known for
Across film & television
Filmography (65)
Showing 65 of 65 credits
Running Man
2010
Men on a Mission
Self
2015
2 Days and 1 Night
2007
Infinite Challenge
Self
2005
Amazing Saturday
Self
2018
KBS Drama Special
Yeon-Sim
2010
The Seasons
Self
2023
My Demon
Do Do-hee
2023
Love in the Moonlight
Hong Ra-on / Hong Sam-nom
2016
Backstreet Rookie
Jung Saet-Byul
2020
Dear X
Baek Ah-jin
2025
Jewel in the Crown
Dong Yi (young)
2010
House on Wheels
Self
2020
100 Days of Deception
Lee Ga-kyeong
2026
Clean with Passion for Now
Gil O-Sol
2018
Reawakened Man
Blue
2026
20th Century Girl
Na Bo-ra
2022
Moon Embracing the Sun
Heo Yeon-woo (young)
2012
SBS Drama Awards
Host
1992
Lovers of the Red Sky
Hong Chun-gi
2021
Lady Vengeance
Jae-kyung
2005
The Chaser
Eun-ji
2008
Iljimae
Eun Chae (young)
2008
Secret Door
Seo Ji-dam
2014
Chicken Nugget
Choi Min-ah
2024
One Ordinary Day
holding cell girl
2021
Angry Mom
Oh Ah Ran
2015
May Queen
Chun Hae-joo (young)
2012
Cain and Abel
young Seo-yeon
2009
Painter of the Wind
Yun-bok (young)
2008
Young Actors' Retreat
2022
Golden Rainbow
Kim Baek-won (teenage)
2013
Grudge: The Revolt of Gumiho
Yeon-Yi
2010
Tidal Wave
Ji-min
2009
Powerful Opponents
Yoo Gwan-Nim
2008
Road No. 1
young Soo-yeon
2010
Tamra, the Island
Jang Beo-Sul
2009
Love Cells
Ne-bi
2014
Melon Music Awards
Messenger
2009
Commitment
Ri Hye-in
2013
The 8th Night
Ae-ran
2021
Love in the Moonlight: Redrawn
Self
2026
Golden Slumber
Soo-ah
2018
My Heart Puppy
Ah-min
2023
Kim Yoo-jung’s Half Holiday in Italy
Herself
2019
7인의 식객
2014
Thread of Lies
Kim Hwa-yeon
2014
Because I Love You
Scully
2017
Rainbow Eyes
Hye-seo's Daughter
2007
All for Love
Kim Jin-a
2005
Circle of Atonement
Lee Jung-Hyun
2015
막이래쇼: 무작정탐험대
2011
Hwang Jin Yi
Young Jin-yi
2007
Possessed
Ji-eun
2009
DMZ (Demilitarized Zone)
2004
Dark, Deadly & Dreadful
Wei (Room 731)
2018
Bank Attack
Bae Yeon-Hee
2007
4 Horror Tales: Hidden Floor
Yeo Joo-hee
2006
On the Pitch
Radio female soldier
2010
Paradise
Hwa-ran
2009
Lump of Sugar
Young Si-eun
2006Soulbound
Yoon-ha
Do You See Seoul?
Yeong-mi
2008
Room 731
Wei
2015
The Dirge Singer
Yun Shim
2014